10899181 has 2 divisors, whose sum is σ = 10899182. Its totient is φ = 10899180.

The previous prime is 10899169. The next prime is 10899191. The reversal of 10899181 is 18199801.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6081156 + 4818025 = 2466^2 + 2195^2 .

It is an emirp because it is prime and its reverse (18199801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10899181 - 2⁵ = 10899149 is a prime.

It is a super-2 number, since 2×10899181² = 237584292941522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10899181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10899101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5449590 + 5449591.

It is an arithmetic number, because the mean of its divisors is an integer number (5449591).

Almost surely, 2^10899181 is an apocalyptic number.

It is an amenable number.

10899181 is a deficient number, since it is larger than the sum of its proper divisors (1).

10899181 is an equidigital number, since it uses as much as digits as its factorization.

10899181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 37.

The square root of 10899181 is about 3301.3907675402. The cubic root of 10899181 is about 221.7164697363.

The spelling of 10899181 in words is "ten million, eight hundred ninety-nine thousand, one hundred eighty-one".